Underwater operations by vessel Aldemir Souza Tide continue until 31 Dec 2026 in the North Atlantic; wide berth requested.
North Atlantic Ocean · NAVAREA IV 1430/25
What this record establishes
Listed in force
The latest collected record lists this warning as active. This is the status of the notice, not a live observation of conditions at the location.
- Source and dates
- NGA MSI in-force warnings (DailyMem*.txt). Issued 2025-12-31 16:45Z. First collected 2026-08-17 13:41Z; last seen in collection 2026-09-29 16:47Z. Collection dates record ingestion, not a new incident or a fresh field observation.
- Location covered
- North Atlantic Ocean. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.
Current notices and reporting history in the North Atlantic Ocean →
- issued
- 2025-12-31 16:45Z
- status
- Listed in force
- self-cancels
- 2027-12-31 00:01Z
- NAVAREA
- NAVAREA IV
- sea
- North Atlantic Ocean
- position
- 8.121, -56.971
- nearest port
- Georgetown · 106 nm
- source
- NGA MSI in-force warnings (DailyMem*.txt) · first seen 2026-08-17 13:41Z
Original warning text
NORTH ATLANTIC. 1. UNDERWATER OPERATIONS IN PROGRESS UNTIL 31 DEC 26 BY OSV ALDEMIR SOUZA TIDE IN AREA BOUND BY 08-15.96N 057-02.23W, 08-15.96N 056-54.25W, 07-58.60N 056-54.25W, 07-58.60N 057-02.23W. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 310001Z DEC 27.
Reading this warning
- Underwater operations
- Divers or remotely operated vehicles are working below a vessel that cannot easily move out of the way.
- Area bound by
- Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
- Position (degrees and minutes)
- How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
- Wide berth requested
- Keep well clear — or, when a distance is given ("TWO MILE BERTH REQUESTED"), at least that far away.
- CANCEL THIS MSG
- The warning's own expiry: a line telling the reader when the message cancels itself.
- Date-time group (DTG)
- A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.
Conditions at the position · now
loading…
MET Norway · NOAA WaveWatch III · HYCOM · GEBCO 2020 · model data at the centroid, not an observation
Collected reports in this area · survey operations
294 within 180 nm since 2014 · 16 in the last 12 months · 13 listed in force now
Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.
- Survey operations 27 sep thru 23 oct by tug dona jose II and M/V exxonmobil guyana limited in area bound by…2026-09-14
- Survey operations until 01 dec by M/V genesis in area bound by 07-15.96N 055-45.64W, 07-17.89N 055-45.22W,…2026-08-24
- Survey operations 01 sep thru 20 nov 26 by M/V hos ridgewind in area bound by 07-44.74N 056-13.99W,…2026-08-13
- Survey operations in progress until 31 dec by vessel aht DN87 and tug telesto in area bound by 07-03.06N…2026-07-20
- Underwater operations in progress until 31 dec by M/V prinsengracht in area bound by 08-03.09N 056-46.88W,…2026-06-24
- Survey operations in progress until 15 nov by M/V moonrise g in area bound by 07-50.19N 058-24.50W,…2026-06-23
Month of issue in the collected archive
All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.
Nearby notices listed in force · within 120 nm
- Underwater operations in progress until further notice by M/V bourbon calm and M/V bourbon sapphire in areas…Surveys · 4 nm
- Underwater operations in progress until 31 dec by M/V c-worker 1 in area bound by 07-54.85N 057-06.47W,…Surveys · 7.6 nm
- Pipeline operations in progress until 31 dec by M/V saipem constellation in area bound by 08-07.37N…Cable ops · 7.7 nm
- Pipeline operations in progress thru 31 dec 26 by the following vessels: c-confidence, c- installer,…Cable ops · 15.1 nm
- Underwater operations in progress until 31 dec by vessel ocv normand navigator in area bound by 08-00.65N…Surveys · 18.4 nm
- Survey operations in progress until 31 dec 26 by M/V fugro brasilis in area bound by: 08-00.00N 057-09.90W,…Surveys · 19 nm
- Underwater operations in progress until 31 dec by M/V prinsengracht in area bound by 08-03.09N 056-46.88W,…Surveys · 19.1 nm
- Survey operations in progress until 31 dec 26 by vessel bos princess in area bound by 08-09.73N 057-09.73W,…Surveys · 21 nm
- Survey operations 01 sep thru 20 nov 26 by M/V hos ridgewind in area bound by 07-44.74N 056-13.99W,…Surveys · 34.3 nm
- Survey operations in progress until 15 nov by M/V moonrise g in area bound by 07-50.19N 058-24.50W,…Surveys · 60.7 nm
- Survey operations in progress until 15 nov by M/V bgp prospector in area bound by 07-50.19N 058-24.50W,…Surveys · 60.7 nm
- Survey operations in progress until 16 nov by M/V sea horse II in area bound by 07-57.54N 058-27.64W,…Surveys · 69.8 nm
Worldwide in the collected sources
54 survey operations listed in force · see all
Record snapshot 2026-09-29 16:49Z; source collection times vary.
Surveys
Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations →
Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.